S
M
T
W
T
F
S
26
64°
45°
27
73°
45°
28
68°
54°
29
63°
43°
30
55°
37°
1
52°
37°
2
52°
34°
3
59°
34°
4
72°
41°
5
64°
45°
6
54°
41°
7
57°
36°
8
63°
43°
9
70°
52°
10
64°
52°
11
68°
41°
12
73°
39°
13
63°
45°
14
63°
37°
15
63°
41°
16
70°
54°
17
82°
59°
18
84°
63°
19
82°
63°
20
63°
46°
21
69°
49°
22
66°
61°
23
74°
61°
24
72°
58°
25
74°
60°
26
74°
60°
27
77°
61°
28
78°
62°
29
76°
60°
30
75°
61°
31
77°
59°
1
76°
57°
2
78°
61°
3
74°
57°
4
71°
54°
5
71°
55°
6
74°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Winchester
Winchester's May 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 46° and 62°. The average high for May is 73° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Winchester. See also: June | July | August.
